The global energy transition towards a more sustainable future has led to a significant focus on the role of hydrogen as an alternative fuel. Organizations worldwide are investing in innovative models centered around hydrogen, including electrification, green hydrogen and biofuels, hydrogen for thermal engines, renewable energies for electrolysis, and other technologies like biomass thermolysis. Hydrogen, with its high gravimetric energy density and low carbon emissions potential, is being viewed as a key player in reducing carbon footprints. The article delves into the various types of hydrogen production methods, ranging from green to brown/black hydrogen. Green hydrogen, produced using electricity from renewable sources, has higher production costs but is considered a low-carbon option. Pink hydrogen, derived from nuclear power, offers efficiency gains due to constant loads. Blue hydrogen, capturing CO2 emissions from grey hydrogen, is comparable in price to grey hydrogen. Grey hydrogen, the most widely used type, is produced through Steam Methane Reforming and has moderate carbon intensity. Brown/black hydrogen, the most carbon-intensive, is produced using gasification of coal. Efforts are being made to shift towards low-carbon hydrogen to reduce carbon emissions during production. Green hydrogen, in particular, is gaining traction for its promising environmental benefits despite its higher costs. Advancements in electrolyser technologies and related components play a crucial role in ensuring the efficiency and purity of hydrogen production. This meticulous approach highlights the importance of precision in green hydrogen generation, supporting the global transition towards sustainable energy practices.